内燃机与配件www.nrjpj.cn设计研究柴油机燃用混合燃料理化特性分析陈海龙1,骆立涵2,张宇1(1.武警海警学院机电管理系,浙江宁波315801;2.武警海警广东支队江门大队,广东江门529000)摘要:为研究生物柴油、乙醇作为柴油替代燃料的可行性,本文开展了柴油-生物柴油-乙醇的互溶性试验及理化特性检测。试验结果表明:为保证在8℃时不出现分层,则柴油中单独掺混乙醇的比例不应超过10%;为使得乙醇和柴油能够以任意比例互溶,生物柴油的加入量随着温度的升高而逐渐降低;随着乙醇的加入量增加,混合燃料的黏度减小;混合燃料与聚苯乙烯材料产生一定的反应,破坏容积壁面结构,降低乙醇与柴油的互溶性。为保证混合燃料的互溶性、润滑性及着火性,乙醇的添加比例不应超过30%,而生物柴油的添加比例不宜大于乙醇。关键词:乙醇;生物柴油;柴油;互溶性中图分类号:TF054文献标识码:A文章编号:1674-957X(2023)05-0001-04AnalysisofPhysicalandChemicalPropertiesofMixedFuelforDieselEngineChenHai-long1,LuoLi-han2,ZhangYu1(1.ChinaCoastGuardAcademyMechanicalElectricalManagementDepartment,ZhejiangNingbo315801;2.GuangdongDetachmentoftheMarinePoliceCorpsoftheArmedPoliceForeJiangmenBrigade,GuangdongJiangmen529000)Abstract:Tostudythefeasibilityofbiodieselandethanolasalternativefuelsfordieselengines.Inthispaperthemutualsolubilitytestandphysicalandchemicalpropertiestestingofdiesel/biodiesel/ethanolwerecarriedout.Thesimulationresultsshowthat:inordertoensurethatthefueldoesnothavestratificationat8℃,theproportionofethanolaloneindieselshouldnotexceed10%;inordertomakeethanolanddieselsolubleinanyratio,theamountofbiodieseladdedgraduallydecreaseswiththeincreaseoftemperature;withtheadditionofethanol,theviscosityofthemixedfueldecreases.Themixedfuelwillreactwithpolystyrenematerialtoacertainextentanddestroythecontainerwall,andreducethemutualsolubilityofethanolanddiesel.Therefore,inordertoensurethatthemixedfuelhasgoodlubricityandreliabilitytheignitionenergy,theblendingratioofethanolshouldnotexceed30%,andtheadditionofbiodieselshouldnotbehigherthanthatofethanol.Keywords:Ethanol;Biodiesel;Dieselfuel;Mutualsolubility项目支持:“十三五”军队重点院校和重点学科专业...
